Playing an audio file during call

[ofcourse]

I want to play an audio file so that the person i am calling can hear it.Not through the speaker though because it will decrease the sound quality.

I tried to open the audio file while calling (with default sound player and google music) but although it openes the app it says "unable to play during call".I also tried in handsfree mode but didnt worked.

I use sg s3 mini with android 4.1.2.

Thanks

 

[codesplice]

I swear that I've seen an app that will do that, but now I'm unable to find it. I'll keep digging and let you know when I do!

EDIT: Okay, I've spent a good twenty minutes looking for that app, and I'm having zero luck. I should probably get on with doing actual work, though, so maybe someone else can help?